Implement new Witness decoding function
diff --git a/js/tools/build/ndn-js-uncomp.js b/js/tools/build/ndn-js-uncomp.js
index a8762c7..bc92e99 100644
--- a/js/tools/build/ndn-js-uncomp.js
+++ b/js/tools/build/ndn-js-uncomp.js
@@ -346,7 +346,7 @@
if (LOG > 3) console.log('ws.onopen: ReadyState: ' + this.readyState);
// Fetch ccndid now
- var interest = new Interest(new Name(NDN.ccndIdFetcher));
+ var interest = new Interest(NDN.ccndIdFetcher);
interest.interestLifetime = 4000; // milliseconds
var subarray = encodeToBinaryInterest(interest);
@@ -4488,559 +4488,6 @@
}
-// ASN.1 JavaScript decoder
-// Copyright (c) 2008-2009 Lapo Luchini <lapo@lapo.it>
-
-// Permission to use, copy, modify, and/or distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-function Stream(enc, pos) {
- if (enc instanceof Stream) {
- this.enc = enc.enc;
- this.pos = enc.pos;
- } else {
- this.enc = enc;
- this.pos = pos;
- }
-}
-Stream.prototype.get = function(pos) {
- if (pos == undefined)
- pos = this.pos++;
- if (pos >= this.enc.length)
- throw 'Requesting byte offset ' + pos + ' on a stream of length ' + this.enc.length;
- return this.enc[pos];
-}
-Stream.prototype.hexDigits = "0123456789ABCDEF";
-Stream.prototype.hexByte = function(b) {
- return this.hexDigits.charAt((b >> 4) & 0xF) + this.hexDigits.charAt(b & 0xF);
-}
-Stream.prototype.hexDump = function(start, end) {
- var s = "";
- for (var i = start; i < end; ++i) {
- s += this.hexByte(this.get(i));
- switch (i & 0xF) {
- case 0x7: s += " "; break;
- case 0xF: s += "\n"; break;
- default: s += " ";
- }
- }
- return s;
-}
-Stream.prototype.parseStringISO = function(start, end) {
- var s = "";
- for (var i = start; i < end; ++i)
- s += String.fromCharCode(this.get(i));
- return s;
-}
-Stream.prototype.parseStringUTF = function(start, end) {
- var s = "", c = 0;
- for (var i = start; i < end; ) {
- var c = this.get(i++);
- if (c < 128)
- s += String.fromCharCode(c);
- else if ((c > 191) && (c < 224))
- s += String.fromCharCode(((c & 0x1F) << 6) | (this.get(i++) & 0x3F));
- else
- s += String.fromCharCode(((c & 0x0F) << 12) | ((this.get(i++) & 0x3F) << 6) | (this.get(i++) & 0x3F));
- //TODO: this doesn't check properly 'end', some char could begin before and end after
- }
- return s;
-}
-Stream.prototype.reTime = /^((?:1[89]|2\d)?\d\d)(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])([01]\d|2[0-3])(?:([0-5]\d)(?:([0-5]\d)(?:[.,](\d{1,3}))?)?)?(Z|[-+](?:[0]\d|1[0-2])([0-5]\d)?)?$/;
-Stream.prototype.parseTime = function(start, end) {
- var s = this.parseStringISO(start, end);
- var m = this.reTime.exec(s);
- if (!m)
- return "Unrecognized time: " + s;
- s = m[1] + "-" + m[2] + "-" + m[3] + " " + m[4];
- if (m[5]) {
- s += ":" + m[5];
- if (m[6]) {
- s += ":" + m[6];
- if (m[7])
- s += "." + m[7];
- }
- }
- if (m[8]) {
- s += " UTC";
- if (m[8] != 'Z') {
- s += m[8];
- if (m[9])
- s += ":" + m[9];
- }
- }
- return s;
-}
-Stream.prototype.parseInteger = function(start, end) {
- //TODO support negative numbers
- var len = end - start;
- if (len > 4) {
- len <<= 3;
- var s = this.get(start);
- if (s == 0)
- len -= 8;
- else
- while (s < 128) {
- s <<= 1;
- --len;
- }
- return "(" + len + " bit)";
- }
- var n = 0;
- for (var i = start; i < end; ++i)
- n = (n << 8) | this.get(i);
- return n;
-}
-Stream.prototype.parseBitString = function(start, end) {
- var unusedBit = this.get(start);
- var lenBit = ((end - start - 1) << 3) - unusedBit;
- var s = "(" + lenBit + " bit)";
- if (lenBit <= 20) {
- var skip = unusedBit;
- s += " ";
- for (var i = end - 1; i > start; --i) {
- var b = this.get(i);
- for (var j = skip; j < 8; ++j)
- s += (b >> j) & 1 ? "1" : "0";
- skip = 0;
- }
- }
- return s;
-}
-Stream.prototype.parseOctetString = function(start, end) {
- var len = end - start;
- var s = "(" + len + " byte) ";
- if (len > 20)
- end = start + 20;
- for (var i = start; i < end; ++i)
- s += this.hexByte(this.get(i));
- if (len > 20)
- s += String.fromCharCode(8230); // ellipsis
- return s;
-}
-Stream.prototype.parseOID = function(start, end) {
- var s, n = 0, bits = 0;
- for (var i = start; i < end; ++i) {
- var v = this.get(i);
- n = (n << 7) | (v & 0x7F);
- bits += 7;
- if (!(v & 0x80)) { // finished
- if (s == undefined)
- s = parseInt(n / 40) + "." + (n % 40);
- else
- s += "." + ((bits >= 31) ? "bigint" : n);
- n = bits = 0;
- }
- s += String.fromCharCode();
- }
- return s;
-}
-
-function ASN1(stream, header, length, tag, sub) {
- this.stream = stream;
- this.header = header;
- this.length = length;
- this.tag = tag;
- this.sub = sub;
-}
-ASN1.prototype.typeName = function() {
- if (this.tag == undefined)
- return "unknown";
- var tagClass = this.tag >> 6;
- var tagConstructed = (this.tag >> 5) & 1;
- var tagNumber = this.tag & 0x1F;
- switch (tagClass) {
- case 0: // universal
- switch (tagNumber) {
- case 0x00: return "EOC";
- case 0x01: return "BOOLEAN";
- case 0x02: return "INTEGER";
- case 0x03: return "BIT_STRING";
- case 0x04: return "OCTET_STRING";
- case 0x05: return "NULL";
- case 0x06: return "OBJECT_IDENTIFIER";
- case 0x07: return "ObjectDescriptor";
- case 0x08: return "EXTERNAL";
- case 0x09: return "REAL";
- case 0x0A: return "ENUMERATED";
- case 0x0B: return "EMBEDDED_PDV";
- case 0x0C: return "UTF8String";
- case 0x10: return "SEQUENCE";
- case 0x11: return "SET";
- case 0x12: return "NumericString";
- case 0x13: return "PrintableString"; // ASCII subset
- case 0x14: return "TeletexString"; // aka T61String
- case 0x15: return "VideotexString";
- case 0x16: return "IA5String"; // ASCII
- case 0x17: return "UTCTime";
- case 0x18: return "GeneralizedTime";
- case 0x19: return "GraphicString";
- case 0x1A: return "VisibleString"; // ASCII subset
- case 0x1B: return "GeneralString";
- case 0x1C: return "UniversalString";
- case 0x1E: return "BMPString";
- default: return "Universal_" + tagNumber.toString(16);
- }
- case 1: return "Application_" + tagNumber.toString(16);
- case 2: return "[" + tagNumber + "]"; // Context
- case 3: return "Private_" + tagNumber.toString(16);
- }
-}
-ASN1.prototype.content = function() {
- if (this.tag == undefined)
- return null;
- var tagClass = this.tag >> 6;
- if (tagClass != 0) // universal
- return (this.sub == null) ? null : "(" + this.sub.length + ")";
- var tagNumber = this.tag & 0x1F;
- var content = this.posContent();
- var len = Math.abs(this.length);
- switch (tagNumber) {
- case 0x01: // BOOLEAN
- return (this.stream.get(content) == 0) ? "false" : "true";
- case 0x02: // INTEGER
- return this.stream.parseInteger(content, content + len);
- case 0x03: // BIT_STRING
- return this.sub ? "(" + this.sub.length + " elem)" :
- this.stream.parseBitString(content, content + len)
- case 0x04: // OCTET_STRING
- return this.sub ? "(" + this.sub.length + " elem)" :
- this.stream.parseOctetString(content, content + len)
- //case 0x05: // NULL
- case 0x06: // OBJECT_IDENTIFIER
- return this.stream.parseOID(content, content + len);
- //case 0x07: // ObjectDescriptor
- //case 0x08: // EXTERNAL
- //case 0x09: // REAL
- //case 0x0A: // ENUMERATED
- //case 0x0B: // EMBEDDED_PDV
- case 0x10: // SEQUENCE
- case 0x11: // SET
- return "(" + this.sub.length + " elem)";
- case 0x0C: // UTF8String
- return this.stream.parseStringUTF(content, content + len);
- case 0x12: // NumericString
- case 0x13: // PrintableString
- case 0x14: // TeletexString
- case 0x15: // VideotexString
- case 0x16: // IA5String
- //case 0x19: // GraphicString
- case 0x1A: // VisibleString
- //case 0x1B: // GeneralString
- //case 0x1C: // UniversalString
- //case 0x1E: // BMPString
- return this.stream.parseStringISO(content, content + len);
- case 0x17: // UTCTime
- case 0x18: // GeneralizedTime
- return this.stream.parseTime(content, content + len);
- }
- return null;
-}
-ASN1.prototype.toString = function() {
- return this.typeName() + "@" + this.stream.pos + "[header:" + this.header + ",length:" + this.length + ",sub:" + ((this.sub == null) ? 'null' : this.sub.length) + "]";
-}
-ASN1.prototype.print = function(indent) {
- if (indent == undefined) indent = '';
- document.writeln(indent + this);
- if (this.sub != null) {
- indent += ' ';
- for (var i = 0, max = this.sub.length; i < max; ++i)
- this.sub[i].print(indent);
- }
-}
-ASN1.prototype.toPrettyString = function(indent) {
- if (indent == undefined) indent = '';
- var s = indent + this.typeName() + " @" + this.stream.pos;
- if (this.length >= 0)
- s += "+";
- s += this.length;
- if (this.tag & 0x20)
- s += " (constructed)";
- else if (((this.tag == 0x03) || (this.tag == 0x04)) && (this.sub != null))
- s += " (encapsulates)";
- s += "\n";
- if (this.sub != null) {
- indent += ' ';
- for (var i = 0, max = this.sub.length; i < max; ++i)
- s += this.sub[i].toPrettyString(indent);
- }
- return s;
-}
-ASN1.prototype.toDOM = function() {
- var node = document.createElement("div");
- node.className = "node";
- node.asn1 = this;
- var head = document.createElement("div");
- head.className = "head";
- var s = this.typeName().replace(/_/g, " ");
- head.innerHTML = s;
- var content = this.content();
- if (content != null) {
- content = String(content).replace(/</g, "<");
- var preview = document.createElement("span");
- preview.className = "preview";
- preview.innerHTML = content;
- head.appendChild(preview);
- }
- node.appendChild(head);
- this.node = node;
- this.head = head;
- var value = document.createElement("div");
- value.className = "value";
- s = "Offset: " + this.stream.pos + "<br/>";
- s += "Length: " + this.header + "+";
- if (this.length >= 0)
- s += this.length;
- else
- s += (-this.length) + " (undefined)";
- if (this.tag & 0x20)
- s += "<br/>(constructed)";
- else if (((this.tag == 0x03) || (this.tag == 0x04)) && (this.sub != null))
- s += "<br/>(encapsulates)";
- //TODO if (this.tag == 0x03) s += "Unused bits: "
- if (content != null) {
- s += "<br/>Value:<br/><b>" + content + "</b>";
- if ((typeof(oids) == 'object') && (this.tag == 0x06)) {
- var oid = oids[content];
- if (oid) {
- if (oid.d) s += "<br/>" + oid.d;
- if (oid.c) s += "<br/>" + oid.c;
- if (oid.w) s += "<br/>(warning!)";
- }
- }
- }
- value.innerHTML = s;
- node.appendChild(value);
- var sub = document.createElement("div");
- sub.className = "sub";
- if (this.sub != null) {
- for (var i = 0, max = this.sub.length; i < max; ++i)
- sub.appendChild(this.sub[i].toDOM());
- }
- node.appendChild(sub);
- head.switchNode = node;
- head.onclick = function() {
- var node = this.switchNode;
- node.className = (node.className == "node collapsed") ? "node" : "node collapsed";
- };
- return node;
-}
-ASN1.prototype.posStart = function() {
- return this.stream.pos;
-}
-ASN1.prototype.posContent = function() {
- return this.stream.pos + this.header;
-}
-ASN1.prototype.posEnd = function() {
- return this.stream.pos + this.header + Math.abs(this.length);
-}
-ASN1.prototype.fakeHover = function(current) {
- this.node.className += " hover";
- if (current)
- this.head.className += " hover";
-}
-ASN1.prototype.fakeOut = function(current) {
- var re = / ?hover/;
- this.node.className = this.node.className.replace(re, "");
- if (current)
- this.head.className = this.head.className.replace(re, "");
-}
-ASN1.prototype.toHexDOM_sub = function(node, className, stream, start, end) {
- if (start >= end)
- return;
- var sub = document.createElement("span");
- sub.className = className;
- sub.appendChild(document.createTextNode(
- stream.hexDump(start, end)));
- node.appendChild(sub);
-}
-ASN1.prototype.toHexDOM = function(root) {
- var node = document.createElement("span");
- node.className = 'hex';
- if (root == undefined) root = node;
- this.head.hexNode = node;
- this.head.onmouseover = function() { this.hexNode.className = "hexCurrent"; }
- this.head.onmouseout = function() { this.hexNode.className = "hex"; }
- node.asn1 = this;
- node.onmouseover = function() {
- var current = !root.selected;
- if (current) {
- root.selected = this.asn1;
- this.className = "hexCurrent";
- }
- this.asn1.fakeHover(current);
- }
- node.onmouseout = function() {
- var current = (root.selected == this.asn1);
- this.asn1.fakeOut(current);
- if (current) {
- root.selected = null;
- this.className = "hex";
- }
- }
- this.toHexDOM_sub(node, "tag", this.stream, this.posStart(), this.posStart() + 1);
- this.toHexDOM_sub(node, (this.length >= 0) ? "dlen" : "ulen", this.stream, this.posStart() + 1, this.posContent());
- if (this.sub == null)
- node.appendChild(document.createTextNode(
- this.stream.hexDump(this.posContent(), this.posEnd())));
- else if (this.sub.length > 0) {
- var first = this.sub[0];
- var last = this.sub[this.sub.length - 1];
- this.toHexDOM_sub(node, "intro", this.stream, this.posContent(), first.posStart());
- for (var i = 0, max = this.sub.length; i < max; ++i)
- node.appendChild(this.sub[i].toHexDOM(root));
- this.toHexDOM_sub(node, "outro", this.stream, last.posEnd(), this.posEnd());
- }
- return node;
-}
-ASN1.decodeLength = function(stream) {
- var buf = stream.get();
- var len = buf & 0x7F;
- if (len == buf)
- return len;
- if (len > 3)
- throw "Length over 24 bits not supported at position " + (stream.pos - 1);
- if (len == 0)
- return -1; // undefined
- buf = 0;
- for (var i = 0; i < len; ++i)
- buf = (buf << 8) | stream.get();
- return buf;
-}
-ASN1.hasContent = function(tag, len, stream) {
- if (tag & 0x20) // constructed
- return true;
- if ((tag < 0x03) || (tag > 0x04))
- return false;
- var p = new Stream(stream);
- if (tag == 0x03) p.get(); // BitString unused bits, must be in [0, 7]
- var subTag = p.get();
- if ((subTag >> 6) & 0x01) // not (universal or context)
- return false;
- try {
- var subLength = ASN1.decodeLength(p);
- return ((p.pos - stream.pos) + subLength == len);
- } catch (exception) {
- return false;
- }
-}
-ASN1.decode = function(stream) {
- if (!(stream instanceof Stream))
- stream = new Stream(stream, 0);
- var streamStart = new Stream(stream);
- var tag = stream.get();
- var len = ASN1.decodeLength(stream);
- var header = stream.pos - streamStart.pos;
- var sub = null;
- if (ASN1.hasContent(tag, len, stream)) {
- // it has content, so we decode it
- var start = stream.pos;
- if (tag == 0x03) stream.get(); // skip BitString unused bits, must be in [0, 7]
- sub = [];
- if (len >= 0) {
- // definite length
- var end = start + len;
- while (stream.pos < end)
- sub[sub.length] = ASN1.decode(stream);
- if (stream.pos != end)
- throw "Content size is not correct for container starting at offset " + start;
- } else {
- // undefined length
- try {
- for (;;) {
- var s = ASN1.decode(stream);
- if (s.tag == 0)
- break;
- sub[sub.length] = s;
- }
- len = start - stream.pos;
- } catch (e) {
- throw "Exception while decoding undefined length content: " + e;
- }
- }
- } else
- stream.pos += len; // skip content
- return new ASN1(streamStart, header, len, tag, sub);
-}
-/*
-ASN1.test = function() {
- var test = [
- { value: [0x27], expected: 0x27 },
- { value: [0x81, 0xC9], expected: 0xC9 },
- { value: [0x83, 0xFE, 0xDC, 0xBA], expected: 0xFEDCBA },
- ];
- for (var i = 0, max = test.length; i < max; ++i) {
- var pos = 0;
- var stream = new Stream(test[i].value, 0);
- var res = ASN1.decodeLength(stream);
- if (res != test[i].expected)
- document.write("In test[" + i + "] expected " + test[i].expected + " got " + res + "\n");
- }
-}*/
-// Hex JavaScript decoder
-// Copyright (c) 2008 Lapo Luchini <lapo@lapo.it>
-
-// Permission to use, copy, modify, and/or distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-Hex = {};
-
-Hex.decode = function(a) {
- if (Hex.decoder == undefined) {
- var hex = "0123456789ABCDEF";
- var allow = " \f\n\r\t\u00A0\u2028\u2029";
- var dec = [];
- for (var i = 0; i < 16; ++i)
- dec[hex.charAt(i)] = i;
- hex = hex.toLowerCase();
- for (var i = 10; i < 16; ++i)
- dec[hex.charAt(i)] = i;
- for (var i = 0; i < allow.length; ++i)
- dec[allow.charAt(i)] = -1;
- Hex.decoder = dec;
- }
- var out = [];
- var bits = 0, char_count = 0;
- for (var i = 0; i < a.length; ++i) {
- var c = a.charAt(i);
- if (c == '=')
- break;
- c = Hex.decoder[c];
- if (c == -1)
- continue;
- if (c == undefined)
- throw 'Illegal character at offset ' + i;
- bits |= c;
- if (++char_count >= 2) {
- out[out.length] = bits;
- bits = 0;
- char_count = 0;
- } else {
- bits <<= 4;
- }
- }
- if (char_count)
- throw "Hex encoding incomplete: 4 bits missing";
- return out;
-}
/**
* @author: Meki Cheraoui
* See COPYING for copyright and distribution information.
@@ -5161,18 +4608,120 @@
this.path = new MerklePath(); // MerklePath
};
+function parseOID(bytes, start, end) {
+ var s, n = 0, bits = 0;
+ for (var i = start; i < end; ++i) {
+ var v = bytes[i];
+ n = (n << 7) | (v & 0x7F);
+ bits += 7;
+ if (!(v & 0x80)) { // finished
+ if (s == undefined)
+ s = parseInt(n / 40) + "." + (n % 40);
+ else
+ s += "." + ((bits >= 31) ? "bigint" : n);
+ n = bits = 0;
+ }
+ s += String.fromCharCode();
+ }
+ return s;
+}
+
+function parseInteger(bytes, start, end) {
+ var n = 0;
+ for (var i = start; i < end; ++i)
+ n = (n << 8) | bytes[i];
+ return n;
+}
+
Witness.prototype.decode = function(/* Uint8Array */ witness) {
+ /* The asn1.js decoder has some bug and
+ * cannot decode certain kind of witness.
+ * So we use an alternative (and dirty) hack
+ * to read witness from byte streams
+ * ------Wentao
+ */
+ /*
var wit = DataUtils.toHex(witness).toLowerCase();
- var der = Hex.decode(wit);
- var asn1 = ASN1.decode(der);
+ try {
+ var der = Hex.decode(wit);
+ var asn1 = ASN1.decode(der);
+ }
+ catch (e) {
+ console.log(e);
+ console.log(wit);
+ }
//console.log(asn1.toPrettyString());
this.oid = asn1.sub[0].sub[0].content(); // OID
+ //console.log(this.oid);
this.path.index = asn1.sub[1].sub[0].sub[0].content(); // index
+ //console.log(this.path.index);
for (i = 0; i < asn1.sub[1].sub[0].sub[1].sub.length; i++) {
pos = asn1.sub[1].sub[0].sub[1].sub[i].stream.pos;
str = wit.substring(2 * pos + 4, 2 * pos + 68);
this.path.digestList.push(str); // digest hex string
+ //console.log(str);
+ }
+ */
+
+ // FIXME: Need to be fixed to support arbitrary ASN1 encoding,
+ // But do we really nned that???? -------Wentao
+
+ // The structure of Witness is fixed as follows:
+ // SEQUENCE (2 elem)
+ // SEQUENCE (1 elem)
+ // OBJECT IDENTIFIER 1.2.840.113550.11.1.2.2
+ // OCTET STRING (1 elem)
+ // SEQUENCE (2 elem)
+ // INTEGER index
+ // SEQUENCE (n elem)
+ // OCTET STRING(32 byte) 345FB4B5E9A1D2FF450ECA87EB87601683027A1A...
+ // OCTET STRING(32 byte) DBCEE5B7A6C2B851B029324197DDBD9A655723DC...
+ // OCTET STRING(32 byte) 4C79B2D256E4CD657A27F01DCB51AC3C56A24E71...
+ // OCTET STRING(32 byte) 7F7FB169604A87EAC94378F0BDB4FC5D5899AB88...
+ // ......
+ // Hence we can follow this structure to extract witness fields at fixed level
+ // Tag numbers for ASN1:
+ // SEQUENCE 0x10
+ // OCT STRING 0x04
+ // INTEGER 0x02
+ // OBJECT IDENTIFIER 0x06
+ var i = 0;
+ var step = 0; // count of sequence tag
+ while (i < witness.length) {
+ var len = 0;
+
+ if (witness[i] == 0x30) {
+ // Sequence (constructed)
+ // There is no primitive sequence in Witness
+ if ((witness[i + 1] & 0x80) != 0) {
+ len = witness[i+1] & 0x7F;
+ }
+ step++;
+ } else if (witness[i] == 0x06) {
+ // Decode OID
+ len = witness[i+1]; // XXX: OID will not be longer than 127 bytes
+ this.oid = parseOID(witness, i + 2, i + 2 + len);
+ //console.log(this.oid);
+ } else if (witness[i] == 0x02) {
+ // Decode node index
+ len = witness[i+1]; // XXX: index will not be longer than 127 bytes
+ this.path.index = parseInteger(witness, i + 2, i + 2 + len);
+ //console.log(this.path.index);
+ } else if (witness[i] == 0x04) {
+ if ((witness[i + 1] & 0x80) != 0) {
+ len = witness[i+1] & 0x7F;
+ } else {
+ len = witness[i+1];
+ }
+ if (step == 4) {
+ // Start to decode digest hex string
+ str = DataUtils.toHex(witness.subarray(i + 2, i + 2 + len));
+ this.path.digestList.push(str); // digest hex string
+ //console.log(str);
+ }
+ }
+ i = i + 2 + len;
}
};
/*